28763713 has 4 divisors (see below), whose sum is σ = 31378608. Its totient is φ = 26148820.

The previous prime is 28763641. The next prime is 28763723. The reversal of 28763713 is 31736782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28763713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28763723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307431 + ... + 1307452.

It is an arithmetic number, because the mean of its divisors is an integer number (7844652).

Almost surely, 2^28763713 is an apocalyptic number.

It is an amenable number.

28763713 is a deficient number, since it is larger than the sum of its proper divisors (2614895).

28763713 is a wasteful number, since it uses less digits than its factorization.

28763713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614894.

The product of its digits is 42336, while the sum is 37.

The square root of 28763713 is about 5363.1812387798. The cubic root of 28763713 is about 306.3949824148.

It can be divided in two parts, 287 and 63713, that added together give a cube (64000 = 40³).

The spelling of 28763713 in words is "twenty-eight million, seven hundred sixty-three thousand, seven hundred thirteen".